| 单词 | unplugs |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔poppet valve〕An intake or exhaust valve, operated by springs and cams, that plugs and unplugs its opening by axial motion.提升阀：由弹簧及凸轮操纵的一吸气或排气阀，通过往复式运动打开或关闭阀门美国传统 |
英语例句辞典收录了559068条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。